Cracking Voices and Young Breasts
"Boys’ voices are breaking earlier; girls are developing breasts as young as six. But why?" Danish researchers began investigating when a church choir could not find enough pre-pubescent boys.
"Boys’ voices are breaking earlier; girls are developing breasts as young as six. But why?" Danish researchers began investigating when a church choir could not find enough pre-pubescent boys. "Most paediatric endocrinologists now agree that the age of puberty is falling fast in developed nations. But there is no consensus on why. The changes are happening too fast to be genetic, so the focus is on environmental factors. Obesity, chemicals and even absentee fathers have all been investigated (a girl who lives apart from her father tends to get her period earlier)."
Are university safe spaces killing intellectual growth?
Our experience of time may be blinding us to its true nature, say scientists.
- Time may not be passing at all, says the Block Universe Theory.
- Time travel may be possible.
- Your perception of time is likely relative to you and limited.
From questionable shipwrecks to outright attacks, they clearly don't want to be bothered.
- Many have tried to contact the Sentinelese, to write about them, or otherwise.
- But the inhabitants of the 23 square mile island in the Bay of Bengal don't want anything to do with the outside world.
- Their numbers are unknown, but either 40 or 500 remain.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.